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media: i2c: max9286: Define macros for all bits of register 0x15
Macros are easier to read than numerical values. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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1 changed files with 18 additions and 9 deletions
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@ -81,10 +81,13 @@
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#define MAX9286_DATATYPE_RGB565 (1 << 0)
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#define MAX9286_DATATYPE_RGB888 (0 << 0)
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/* Register 0x15 */
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#define MAX9286_CSI_IMAGE_TYP BIT(7)
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#define MAX9286_VC(n) ((n) << 5)
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#define MAX9286_VCTYPE BIT(4)
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#define MAX9286_CSIOUTEN BIT(3)
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#define MAX9286_0X15_RESV (3 << 0)
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#define MAX9286_SWP_ENDIAN BIT(2)
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#define MAX9286_EN_CCBSYB_CLK_STR BIT(1)
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#define MAX9286_EN_GPI_CCBSYB BIT(0)
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/* Register 0x1b */
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#define MAX9286_SWITCHIN(n) (1 << ((n) + 4))
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#define MAX9286_ENEQ(n) (1 << (n))
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@ -529,10 +532,12 @@ static void max9286_set_video_format(struct max9286_priv *priv,
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return;
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/*
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* Video format setup:
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* Disable CSI output, VC is set according to Link number.
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* Video format setup: disable CSI output, set VC according to Link
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* number, enable I2C clock stretching when CCBSY is low, enable CCBSY
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* in external GPI-to-GPO mode.
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*/
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max9286_write(priv, 0x15, MAX9286_VCTYPE | MAX9286_0X15_RESV);
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max9286_write(priv, 0x15, MAX9286_VCTYPE | MAX9286_EN_CCBSYB_CLK_STR |
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MAX9286_EN_GPI_CCBSYB);
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/* Enable CSI-2 Lane D0-D3 only, DBL mode. */
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max9286_write(priv, 0x12, MAX9286_CSIDBL | MAX9286_DBL |
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@ -814,13 +819,17 @@ static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
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}
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/*
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* Enable CSI output, VC set according to link number.
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* Bit 7 must be set (chip manual says it's 0 and reserved).
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* Configure the CSI-2 output to line interleaved mode (W x (N
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* x H), as opposed to the (N x W) x H mode that outputs the
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* images stitched side-by-side) and enable it.
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*/
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max9286_write(priv, 0x15, 0x80 | MAX9286_VCTYPE |
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MAX9286_CSIOUTEN | MAX9286_0X15_RESV);
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max9286_write(priv, 0x15, MAX9286_CSI_IMAGE_TYP | MAX9286_VCTYPE |
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MAX9286_CSIOUTEN | MAX9286_EN_CCBSYB_CLK_STR |
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MAX9286_EN_GPI_CCBSYB);
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} else {
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max9286_write(priv, 0x15, MAX9286_VCTYPE | MAX9286_0X15_RESV);
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max9286_write(priv, 0x15, MAX9286_VCTYPE |
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MAX9286_EN_CCBSYB_CLK_STR |
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MAX9286_EN_GPI_CCBSYB);
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/* Stop all cameras. */
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for_each_source(priv, source)
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